l-carnitine male hormone for Enhancement: What the Evidence Actually Shows Carnitine
Description
Peer review Peer review information Nature Reviews Endocrinology thanks Martin Blaser and the other, anonymous, reviewer(s) for their contribution to the peer review of this work

L-carnitine is a common ingredient in supplements aimed at supporting fat metabolism, which is why its combination with green tea is especially popular among active individuals
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Premature atrial contractions (PACs): PACs are extra heartbeats that begin in the atria

No statistically differences were observed as a function of clinical severity (i.e., CSS, MBAS, RSBQ, and SDSC) (data not shown)

Part 2: myriad challenges
